M33 R2R - Portable High Res Music Player

The FiiO M33 R2R brings true R2R resistor-ladder DAC architecture into a modern Android-powered digital audio player. Its fully differential 24-bit R2R design delivers a natural, analog-like presentation with rich tonality, excellent micro-detail, and musical warmth rarely found in portable devices.

Powered by a Qualcomm Snapdragon 680 processor running Android 13, the M33 provides smooth performance for streaming applications, local playback, and system navigation. With 8 GB of RAM and 128 GB of internal storage — expandable via microSD — it easily handles large high-resolution music libraries.

The player features dual headphone outputs: a 3.5 mm single-ended output and a 4.4 mm balanced output. The amplification stage delivers up to 470 mW + 470 mW at 32 ohms via the 3.5 mm output and up to 1100 mW + 1100 mW at 32 ohms via the 4.4 mm balanced output, providing excellent drive capability for both sensitive IEMs and demanding full-size headphones.

A 5.5 inch HD touchscreen offers intuitive control, while Desktop Mode allows the M33 to operate as a stable source component when connected to external power. Additional features include a 10-band parametric EQ with Auto EQ support, USB DAC functionality, coaxial digital output, Bluetooth, and Wi-Fi streaming.

Battery life reaches up to approximately 14 hours using the 3.5 mm output and approximately 12.5 hours using the balanced 4.4 mm output, making it ideal for extended portable use.

• DAC Architecture: Fully differential 24-bit R2R resistor ladder
• Operating System: Android 13
• Processor: Qualcomm Snapdragon 680
• RAM: 8 GB
• Internal Storage: 128 GB
• Expandable Storage: microSD card support
• Display: 5.5 inch HD touchscreen
• Balanced Output Power (4.4 mm): Up to 1100 mW + 1100 mW at 32 ohms
• Single-Ended Output Power (3.5 mm): Up to 470 mW + 470 mW at 32 ohms
• Battery Capacity: 4400 mAh
• Battery Life: Up to approximately 14 hours (3.5 mm) / 12.5 hours (4.4 mm)
• USB: USB-C (charging, data, USB DAC mode)
• Digital Output: Coaxial
• Wireless: Bluetooth and Wi-Fi
• Weight: Approximately 258 g

• Fully differential 24-bit R2R ladder DAC architecture
• Android 13 operating system
• Qualcomm Snapdragon 680 processor
• 8 GB RAM and 128 GB internal storage
• Expandable storage via microSD card
• 3.5 mm single-ended headphone output
• 4.4 mm balanced headphone output
• Up to 1100 mW per channel balanced output power
• 5.5 inch HD touchscreen display
• Desktop Mode for stationary use
• 10-band parametric EQ with Auto EQ
• USB DAC functionality
• Low-jitter coaxial digital output
• Bluetooth and Wi-Fi connectivity